Cyclotrisiloxane, hexaphenyl-
- Formula: C36H30O3Si3
- Molecular weight: 594.8781
- IUPAC Standard InChI: InChI=1S/C36H30O3Si3/c1-7-19-31(20-8-1)40(32-21-9-2-10-22-32)37-41(33-23-11-3-12-24-33,34-25-13-4-14-26-34)39-42(38-40,35-27-15-5-16-28-35)36-29-17-6-18-30-36/h1-30H
- IUPAC Standard InChIKey: VCYDUTCMKSROID-UHFFFAOYSA-N
- CAS Registry Number: 512-63-0
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Diphenylsiloxane cyclic trimer; Hexaphenylcyclotrisiloxane; 2,2,4,4,6,6-Hexaphenyl-[1,3,5,2,4,6]trioxatrisilinan
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Condensed phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°solid,1 bar | 735.5 | J/mol*K | N/A | Kuliev, Dzhafarov, et al., 1982 |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 683.7 | 298.15 | Kuliev, Dzhafarov, et al., 1982 | T = 4.7 to 300 K. Data given graphically except for data at 298.15 K. |
Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: William E. Acree, Jr., James S. Chickos
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference |
|---|---|---|
| 39.3 | 466. | Lebedev, Smirnova, et al., 2000 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kuliev, Dzhafarov, et al., 1982
Kuliev, A.M.; Dzhafarov, O.I.; Karasharli, K.A.; Kostryukov, V.N.,
Heat capacity and thermodynamic functions of cyclic methylphenylsiloxanes,
Zhur. Fiz. Khim., 1982, 56, 310-313. [all data]
Lebedev, Smirnova, et al., 2000
Lebedev, B.V.; Smirnova, N.N.; Papkov, V.S.; Buzin, M.I.; Dubovik, I.I.,
Thermodynamics of poly(diphenylsiloxane) in the temperature region of 0-620 K,
Poly. Sci., Ser. A, 2000, 42, 10, 1111. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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